Computer simulation of contact interaction between a spherical indenter and soil surface was performed by the means of ANSYS software. It was assumed that the soil was elastically-plastically deformed in accordance with the model of Drucker-Prager. The case of indenter inserting and its contemporaneous displacement along the contact surface was considered. The results obtained by different material models show that the maximal stresses are reduced by 50% and more for the Drucker-Prager model in comparison with the results for the elastic model. The influence of horizontal movement-vertical movement ratio for the indenter on the stresses in the soil was analyzed.
Finite element modeling of the Newtonian and non Newtonian liquids oscillations in the cylindrical transport reservoir at its braking was performed. The peculiarities of the Newtonian, Ostwald de Waele and Bingham models of liquid sloshing in tank with internal perforated baffles and without them were analyzed. There were obtained the dependences of hydrodynamic pressures and liquid energy dissipation for Newtonian and non Newtonian liquids considering the different filling level of the reservoir.
The purpose of the investigation is to analyze the influence of the configuration of lateral baffle installed in the reservoir of road tank on the characteristics of liquid cargo sloshing in the tank at its emergency braking. There were performed computations for the analysis of the hydrodynamic pressures and liquid energy dissipation for different kinds of liquid cargo transported in the road tanks with perforated and solid baffles. Also different filling levels of the reservoir were considered. The configuration of the internal lateral baffle providing maximal efficiency of liquid oscillations damping and minimal loading of the road tank shell was suggested.
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